C2171 Blood refinement heart codex
What remained behind for the seniors were merely their insights into the Heavenly Dao, which didn't contain the power of their own. The power that was condensed into a rune seal was actually formed from the power of the Heavenly Dao. Although their insights into the Heavenly Dao had been fused within it, the aura emitted by the rune seal was also the aura of the Heavenly Dao.
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